Examples of asymptotically ell_¹ Banach spaces
classification
🧮 math.FA
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spacesbanachexamplesunconditionalanswerarbitrarilyasymptoticasymptotically
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Two examples of asymptotic $\ell_{1}$ Banach spaces are given. The first, $X_{u}$, has an unconditional basis and is arbitrarily distortable. The second, $X$, does not contain any unconditional basic sequence. Both are spaces of the type of Tsirelson. We thus answer a question raised by W.T.Gowers.
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